Colliding Galaxies Make Love, Not War (IMAGE) ESA/Hubble Information Centre Caption This Hubble image of the Antennae galaxies is the sharpest yet of this merging pair of galaxies. As the two galaxies smash together, billions of stars are born, mostly in groups and clusters of stars. The brightest and most compact of these are called super star clusters. Credit Credit: NASA, ESA, and B. Whitmore (Space Telescope Science Institute). Acknowledgement: James Long (ESA/Hubble). Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.